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CVE-2025-58767— REXML has a DoS condition when parsing malformed XML file

Quick assessment

Affected
ruby rexml
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

REXML是Ruby开源的一个用于 Ruby 的 XML 工具包。 REXML 3.3.3版本至3.4.1版本存在资源管理错误漏洞，该漏洞源于解析包含多个XML声明的XML时处理不当，可能导致拒绝服务攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-58767

Vulnerability Information
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Vulnerability Title
REXML has a DoS condition when parsing malformed XML file
Source: CVE Program / CVE List V5
Vulnerability Description
REXML is an XML toolkit for Ruby. The REXML gems from 3.3.3 to 3.4.1 has a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. The REXML gem 3.4.2 or later include the patches to fix these vulnerabilities.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
REXML 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
REXML是Ruby开源的一个用于 Ruby 的 XML 工具包。 REXML 3.3.3版本至3.4.1版本存在资源管理错误漏洞，该漏洞源于解析包含多个XML声明的XML时处理不当，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ruby rexml >= 3.3.3, < 3.4.2 -

II. Public POCs for CVE-2025-58767

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III. Intelligence Information for CVE-2025-58767

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IV. Related Vulnerabilities

Same product: rexml
Same vendor: ruby
Same weakness: CWE-400

V. Comments for CVE-2025-58767

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